/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.classfile.visitor;

import proguard.classfile.*;
import proguard.classfile.util.SimplifiedVisitor;

import java.util.Set;

/**
 * This MemberVisitor collects dot-separated classname.membername.descriptor strings of the class members that it
 * visits.
 *
 * @author Eric Lafortune
 */
public class MemberCollector extends SimplifiedVisitor implements MemberVisitor {
    private final boolean includeClassName;
    private final boolean includeMemberName;
    private final boolean includeMemberDescriptor;

    private final Set set;

    /**
     * Creates a new MemberCollector.
     * 
     * @param includeClassName specifies whether to include the class name in each collected strings.
     * @param includeMemberName specifies whether to include the member name in each collected strings.
     * @param includeMemberDescriptor specifies whether to include the member descriptor in each collected strings.
     * @param set the Set in which all strings will be collected.
     */
    public MemberCollector(boolean includeClassName, boolean includeMemberName, boolean includeMemberDescriptor,
        Set set) {
        this.includeClassName = includeClassName;
        this.includeMemberName = includeMemberName;
        this.includeMemberDescriptor = includeMemberDescriptor;

        this.set = set;
    }

    // Implementations for MemberVisitor.

    public void visitAnyMember(Clazz clazz, Member member) {
        StringBuffer buffer = new StringBuffer();

        if (includeClassName) {
            buffer.append(clazz.getName()).append('.');
        }

        if (includeMemberName) {
            buffer.append(member.getName(clazz)).append('.');
        }

        if (includeMemberDescriptor) {
            buffer.append(member.getDescriptor(clazz));
        }

        set.add(buffer.toString());
    }
}